Closure



ber 4 and the device having the openingto rounded by an upwardly extending neck having a tubular body portion 27; Said body portion may be an integral part of the tankor separate therefrom and suitably secured thereto, the latter arrangement being here shown with saidbody portion provided with a, laterally extending base'flange 28 be'passe'dth e fingersfl of thefclosure lock:

inclined to' provide cam surfaces 33.with

secured to said tank.

adapted to bejwelded or otherwise suitably At its upper end, said neck body portion is provided with an inwardly extending transverse wall 30' whichterminates in a 7 depending flange 31. At two diametrically f' opposite points, parts of thewall 30and the flangeBl are cutaway to providetwo pas sageways 325thr0ugh which are adapted to ing member, as will later appear. "The cutting away of parts of said wall 30 and flange 31 provides two depending flange portions 31 of si'ibstantially semi-circular form and thelbottom edges of. these flange portions are which cooperate the closures locking fingers 6 in effecting detachableconnection of the closureto the neck. In order to liinit rotary movement of the closure locking fingers up along the cam surfaces 8,}each flange portion is provided at'th'e rearof its cam surface with a depending stop projection 34 .andfjust. in' advance of these projections,

eachcamsurface'is providediwith a recessed 7 portion or dwell 35, inwhi'ch'dwells'the closure locking fingers seatswhen .the -.closure isin fully locked position {on the neck.

The closure is appliedtQ the: neck in the usual manne'r'fo'f bayonet-joint connections, the i closure locking fingers I 6 being a ssed down through 'the pass'ageways' 32''}oftlie neck: "The closure is then turned ina iclo.ck-; w se directionwh'ich causes the closure fin- -gers to'ridef up the jcain surfaces33'until I reach the dwells 35 thereim'furjtheri'rog tary movement ofsaid fingers in this ,dire'c 'tionbeingprevented by the; stop projections 34; said fingers ride" up the' camsurfaces 33, they move downwardly in openings 7 of" the, fclosure inner" wall, v such" downward In YQ 'e b in p rm tte yfih 'r i' y of the arms ".8 of the closure locking member,

is said arms tending to move/to flattened-or 'collapsed position, .as indicateid in Fig;

to turn it in the reverse direction, whereupon the closure locking, fingers leave the dwells 35and ride do'wnthecam surfaces 33 to the passageways 32, after which the closure can be readily lifted from the neck.

Preferably, the closure is provided with a yieldinggasket 38 which is adapted to snug- 1y surround the cup-shaped portion of the closure inner wall and to engage the lower surface ofthe horizontal flange portion-1 thereof; While engagement of the gasket '38 with thecup-shaped portion of the closure inner wall is usually snug enough to maintain the gasket in position, said gasket can not escapefrom the' closure due to the outwardly extending locking fingers 6..of the "closure locking member. Whenthe closure, is applied to the neck as in Fig, 1, said gasket is compressed between the flange portion'l of the closure inner wall and the top transverse wall 30 of the neck, Said gasket is of insufii cient' width tofreach' the "cylin: fdrical skirt;portion"1l of the closure outer wall sotliat theventopening or openings 22 in the margin jofvthe'horizontal flange .portion'l of thejclosure inner wall are not covered thereby. "r

What Ielaim is 1. 'A closure for" the openings of, devices having opposed cam p ortionsadjacent said openings, comprising an element provided with two opposed openings, and'a locking member having a body portion spaced from said element and. provided 'with'locking fingers extending through'andimovable in said openings toward and from said element ion and with integral resilientmeansyieldingly engagingsaid element'and normally tending to movejsaidbody portion and said fingers from said ,element, whereby when the closure is applied to a-device'for closing the closure engage the cam portionspf said device with yielding effect. a i I j "2. Adosure for th'ejopenings' of devices having opposed. cam portions adjacent said openings, comprising an element: and" a looking memberhaving a; body portion spaced opening thereof,'the locking fingers of said from said elementgand provided with locking fingersihaving limited fnio vement "toward and from. said element" and with he tegral' vresilient means -yieldingly engaging said element normally tending to *move saidg b'ody portion and said fingers; from "said element, 'wlriereby whengthe closure is appliednto a ass s; for closing the opening the eof h :-le

gffingers'fof said closure engage the cam po-r'tions gof said device with yielding efle'ctf v '7 I j 3. j closur'e"for-thejopenings' of devices Y Z PPOS Q 'ca'm i fi i i dj 21061111 Said openings, comprising an element" andfa locking member provided with -1o cking1fingers having limited movement toward and from-said element and with'fa' resilient arm yiel'dingly engaging said element" and normally tendingto move said fingers fromsaid element, whereby {When the closure is applied to a device for closing" the Opening thereof, the locking fingers of said closure engage the cam portionsv of said device with yieldingeiiect, I

4.,A closureforthe openings OfQdBViCBS having opposed cam' portions adj acent" said openings, comprising'an element, and a lock-- ing member provided with looking fingers from: said bottom wall', whereby when the closure is applied to a device forclosingthe opening thereof, the locking fingers of'said closure engage the cam portions of said idevice with yielding'efl'ect.

In testimony whereof I hereby aflix my signature.

1 J MEss; REID.

having limited movement toward and from said element and with; resilient opposed arms yieldingly engaging said element and nor-e mally tending to move said fingers from said element, whereby when the closure is applied to a devicefor closing 'the opening 7 thereof, the locking fingers ofnsaid closure engage the cam 'portions'of-s'aid device with yielding efiect.

5; A closure for. having opposed cam portions :adj acenft said the openings ofgd'ev ices V openings, comprisingan element, and alockmg member provided with looking fingers having limited 'movement'tow'ard and. from c said element andwith a pair of resilient pposed arms extendingin'oppositefdirece ,tions into yielding engagement with said element'and normally tending to :move said fingers from said element, whereby when the 1 closure is applied to-a device forclosing the 5 opening thereof, thelockinglfingers 'ofsaid closure engage the cam'portions of-said jde-r e vice with yielding effect.

6. A closure for the openings 1( 1vi cS-,;Q having opposed camj portions adjacentsaid V openings, comprising i .an element provided} j 'ment with said element and normally-tend ing to move saidfingers from said element,

whereby when the closureis applied to a device for closing the opening thereof, the 7 locking fingers of saidclo$ure 'engage the cam portions of saiddevice with: yielding i =wal1 ofsaid cup-shapedportionl and'nor 7 15511124115 tending'to move-saidffinger portions i effect;

-7. A closure for the'openings'of devices having opposed cam portions adjacent said. i openings, comprising a; member having a a V *QUP- haped portion provided in its side-wall I with two'opposed openings, and a" locking" member having. a body portion arranged; I Withinsaid cup-shaped portion and finger ii" .L i vi-portions vat theendsof said body 'portion,-j

said finger portionsextending throughjand I V i )7 axially movable in said-opposed openings; i V

the bodyportion of said lockingmember beingprovidedwith a pair of resiliently. op I posed arms extendingjnopposite directions into yielding ngagement withith bbttom r iso 

